specification: Brand Name: Kemei power: 5W charging time: 2 hours working time: 120 minutes battery: lithium battery package content: 1 machine 1 USB cable 1 brush 1 case Characteristic: High Quality MotorKemei Double Metal Foil Shaver is a full-size metal foil shaver, equipped with a powerful rotary motor. This foil shaver does not pull hair or irritate sensitive skin. FAST USB CHARGING: The powerful lithium-ion battery of this men's shaver offers a full 120 minutes of shaving after 2 hours of full charge. LED Display When the battery is almost dead, there is an LCD display at the bottom of the product that will show the battery and then you can charge it.